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Finding the Fourth Proportional to 554,510,859.71, 831,893,851.80 and 186,094,700.87

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Solution

The fourth proportional to 554,510,859.71, 831,893,851.80 and 186,094,700.87 is: 279,184,861.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,510,859.71 : 831,893,851.80 = 186,094,700.87 : x
  2. Step 2: Convert to fraction form
    554,510,859.71/831,893,851.80 = 186,094,700.87/x
  3. Step 3: Cross multiply
    554,510,859.71x = 831,893,851.80 × 186,094,700.87
  4. Step 4: Simplify right side
    554,510,859.71x = 154,811,037,506,313,120
  5. Step 5: Solve for x
    x = 154,811,037,506,313,120/554,510,859.71
  6. Step 6: Final answer
    x = 279,184,861.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.