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Finding the Fourth Proportional to 124,807.86, 172,252.78 and 71,097.98

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Solution

The fourth proportional to 124,807.86, 172,252.78 and 71,097.98 is: 98,125.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,807.86 : 172,252.78 = 71,097.98 : x
  2. Step 2: Convert to fraction form
    124,807.86/172,252.78 = 71,097.98/x
  3. Step 3: Cross multiply
    124,807.86x = 172,252.78 × 71,097.98
  4. Step 4: Simplify right side
    124,807.86x = 12,246,823,668.38
  5. Step 5: Solve for x
    x = 12,246,823,668.38/124,807.86
  6. Step 6: Final answer
    x = 98,125.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.