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Finding the Fourth Proportional to 107,602.40, 148,503.12 and 62,279.66

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Solution

The fourth proportional to 107,602.40, 148,503.12 and 62,279.66 is: 85,952.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,602.40 : 148,503.12 = 62,279.66 : x
  2. Step 2: Convert to fraction form
    107,602.40/148,503.12 = 62,279.66/x
  3. Step 3: Cross multiply
    107,602.40x = 148,503.12 × 62,279.66
  4. Step 4: Simplify right side
    107,602.40x = 9,248,723,822.54
  5. Step 5: Solve for x
    x = 9,248,723,822.54/107,602.40
  6. Step 6: Final answer
    x = 85,952.77

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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.