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Finding the Fourth Proportional to 89,038.70, 133,558.05 and 59,246.90

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Solution

The fourth proportional to 89,038.70, 133,558.05 and 59,246.90 is: 88,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,038.70 : 133,558.05 = 59,246.90 : x
  2. Step 2: Convert to fraction form
    89,038.70/133,558.05 = 59,246.90/x
  3. Step 3: Cross multiply
    89,038.70x = 133,558.05 × 59,246.90
  4. Step 4: Simplify right side
    89,038.70x = 7,912,900,432.55
  5. Step 5: Solve for x
    x = 7,912,900,432.55/89,038.70
  6. Step 6: Final answer
    x = 88,870.35

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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.