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Finding the Fourth Proportional to 88,713.60, 133,070.40 and 42,057.60

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Solution

The fourth proportional to 88,713.60, 133,070.40 and 42,057.60 is: 63,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,713.60 : 133,070.40 = 42,057.60 : x
  2. Step 2: Convert to fraction form
    88,713.60/133,070.40 = 42,057.60/x
  3. Step 3: Cross multiply
    88,713.60x = 133,070.40 × 42,057.60
  4. Step 4: Simplify right side
    88,713.60x = 5,596,621,655.04
  5. Step 5: Solve for x
    x = 5,596,621,655.04/88,713.60
  6. Step 6: Final answer
    x = 63,086.40

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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.