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Finding the Fourth Proportional to 141,691.74, 212,404.05 and 70,547.22

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Solution

The fourth proportional to 141,691.74, 212,404.05 and 70,547.22 is: 105,754.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,691.74 : 212,404.05 = 70,547.22 : x
  2. Step 2: Convert to fraction form
    141,691.74/212,404.05 = 70,547.22/x
  3. Step 3: Cross multiply
    141,691.74x = 212,404.05 × 70,547.22
  4. Step 4: Simplify right side
    141,691.74x = 14,984,515,244.24
  5. Step 5: Solve for x
    x = 14,984,515,244.24/141,691.74
  6. Step 6: Final answer
    x = 105,754.33

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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.