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Finding the Fourth Proportional to 92,574.59, 138,750.18 and 42,586.11

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Solution

The fourth proportional to 92,574.59, 138,750.18 and 42,586.11 is: 63,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,574.59 : 138,750.18 = 42,586.11 : x
  2. Step 2: Convert to fraction form
    92,574.59/138,750.18 = 42,586.11/x
  3. Step 3: Cross multiply
    92,574.59x = 138,750.18 × 42,586.11
  4. Step 4: Simplify right side
    92,574.59x = 5,908,830,428.00
  5. Step 5: Solve for x
    x = 5,908,830,428.00/92,574.59
  6. Step 6: Final answer
    x = 63,827.78

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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.