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Finding the Fourth Proportional to 92,861.70, 139,276.08 and 42,248.97

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Solution

The fourth proportional to 92,861.70, 139,276.08 and 42,248.97 is: 63,365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,861.70 : 139,276.08 = 42,248.97 : x
  2. Step 2: Convert to fraction form
    92,861.70/139,276.08 = 42,248.97/x
  3. Step 3: Cross multiply
    92,861.70x = 139,276.08 × 42,248.97
  4. Step 4: Simplify right side
    92,861.70x = 5,884,270,925.64
  5. Step 5: Solve for x
    x = 5,884,270,925.64/92,861.70
  6. Step 6: Final answer
    x = 63,365.96

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1.5x scale

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.