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Finding the Fourth Proportional to 88,840.70, 133,042.35 and 42,038.90

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Solution

The fourth proportional to 88,840.70, 133,042.35 and 42,038.90 is: 62,954.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,840.70 : 133,042.35 = 42,038.90 : x
  2. Step 2: Convert to fraction form
    88,840.70/133,042.35 = 42,038.90/x
  3. Step 3: Cross multiply
    88,840.70x = 133,042.35 × 42,038.90
  4. Step 4: Simplify right side
    88,840.70x = 5,592,954,047.42
  5. Step 5: Solve for x
    x = 5,592,954,047.42/88,840.70
  6. Step 6: Final answer
    x = 62,954.86

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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.