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Finding the Fourth Proportional to 387,807.84, 581,598.72 and 151,097.76

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Solution

The fourth proportional to 387,807.84, 581,598.72 and 151,097.76 is: 226,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,807.84 : 581,598.72 = 151,097.76 : x
  2. Step 2: Convert to fraction form
    387,807.84/581,598.72 = 151,097.76/x
  3. Step 3: Cross multiply
    387,807.84x = 581,598.72 × 151,097.76
  4. Step 4: Simplify right side
    387,807.84x = 87,878,263,810.87
  5. Step 5: Solve for x
    x = 87,878,263,810.87/387,807.84
  6. Step 6: Final answer
    x = 226,602.60

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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.