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Finding the Fourth Proportional to 261,547.68, 392,379.66 and 95,335.68

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Solution

The fourth proportional to 261,547.68, 392,379.66 and 95,335.68 is: 143,024.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,547.68 : 392,379.66 = 95,335.68 : x
  2. Step 2: Convert to fraction form
    261,547.68/392,379.66 = 95,335.68/x
  3. Step 3: Cross multiply
    261,547.68x = 392,379.66 × 95,335.68
  4. Step 4: Simplify right side
    261,547.68x = 37,407,781,704.27
  5. Step 5: Solve for x
    x = 37,407,781,704.27/261,547.68
  6. Step 6: Final answer
    x = 143,024.71

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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.