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Finding the Fourth Proportional to 58,871.60, 88,307.40 and 40,209.20

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Solution

The fourth proportional to 58,871.60, 88,307.40 and 40,209.20 is: 60,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,871.60 : 88,307.40 = 40,209.20 : x
  2. Step 2: Convert to fraction form
    58,871.60/88,307.40 = 40,209.20/x
  3. Step 3: Cross multiply
    58,871.60x = 88,307.40 × 40,209.20
  4. Step 4: Simplify right side
    58,871.60x = 3,550,769,908.08
  5. Step 5: Solve for x
    x = 3,550,769,908.08/58,871.60
  6. Step 6: Final answer
    x = 60,313.80

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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.