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Finding the Fourth Proportional to 60,307.20, 90,460.80 and 57,747.60

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Solution

The fourth proportional to 60,307.20, 90,460.80 and 57,747.60 is: 86,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,307.20 : 90,460.80 = 57,747.60 : x
  2. Step 2: Convert to fraction form
    60,307.20/90,460.80 = 57,747.60/x
  3. Step 3: Cross multiply
    60,307.20x = 90,460.80 × 57,747.60
  4. Step 4: Simplify right side
    60,307.20x = 5,223,894,094.08
  5. Step 5: Solve for x
    x = 5,223,894,094.08/60,307.20
  6. Step 6: Final answer
    x = 86,621.40

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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.