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Finding the Fourth Proportional to 445,903.79, 668,925.24 and 146,316.17

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Solution

The fourth proportional to 445,903.79, 668,925.24 and 146,316.17 is: 219,497.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,903.79 : 668,925.24 = 146,316.17 : x
  2. Step 2: Convert to fraction form
    445,903.79/668,925.24 = 146,316.17/x
  3. Step 3: Cross multiply
    445,903.79x = 668,925.24 × 146,316.17
  4. Step 4: Simplify right side
    445,903.79x = 97,874,580,256.76
  5. Step 5: Solve for x
    x = 97,874,580,256.76/445,903.79
  6. Step 6: Final answer
    x = 219,497.08

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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.