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Finding the Fourth Proportional to 125,114.61, 172,658.25 and 67,754.39

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Solution

The fourth proportional to 125,114.61, 172,658.25 and 67,754.39 is: 93,501.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,114.61 : 172,658.25 = 67,754.39 : x
  2. Step 2: Convert to fraction form
    125,114.61/172,658.25 = 67,754.39/x
  3. Step 3: Cross multiply
    125,114.61x = 172,658.25 × 67,754.39
  4. Step 4: Simplify right side
    125,114.61x = 11,698,353,543.93
  5. Step 5: Solve for x
    x = 11,698,353,543.93/125,114.61
  6. Step 6: Final answer
    x = 93,501.10

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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.