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Finding the Fourth Proportional to 60,557.20, 90,835.80 and 60,168.40

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Solution

The fourth proportional to 60,557.20, 90,835.80 and 60,168.40 is: 90,252.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,557.20 : 90,835.80 = 60,168.40 : x
  2. Step 2: Convert to fraction form
    60,557.20/90,835.80 = 60,168.40/x
  3. Step 3: Cross multiply
    60,557.20x = 90,835.80 × 60,168.40
  4. Step 4: Simplify right side
    60,557.20x = 5,465,444,748.72
  5. Step 5: Solve for x
    x = 5,465,444,748.72/60,557.20
  6. Step 6: Final answer
    x = 90,252.60

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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.