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Finding the Fourth Proportional to 88,693.60, 133,040.40 and 57,200.80

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Solution

The fourth proportional to 88,693.60, 133,040.40 and 57,200.80 is: 85,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,693.60 : 133,040.40 = 57,200.80 : x
  2. Step 2: Convert to fraction form
    88,693.60/133,040.40 = 57,200.80/x
  3. Step 3: Cross multiply
    88,693.60x = 133,040.40 × 57,200.80
  4. Step 4: Simplify right side
    88,693.60x = 7,610,017,312.32
  5. Step 5: Solve for x
    x = 7,610,017,312.32/88,693.60
  6. Step 6: Final answer
    x = 85,801.20

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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.