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Finding the Fourth Proportional to 153,607.20, 230,443.20 and 48,436.80

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Solution

The fourth proportional to 153,607.20, 230,443.20 and 48,436.80 is: 72,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,607.20 : 230,443.20 = 48,436.80 : x
  2. Step 2: Convert to fraction form
    153,607.20/230,443.20 = 48,436.80/x
  3. Step 3: Cross multiply
    153,607.20x = 230,443.20 × 48,436.80
  4. Step 4: Simplify right side
    153,607.20x = 11,161,931,189.76
  5. Step 5: Solve for x
    x = 11,161,931,189.76/153,607.20
  6. Step 6: Final answer
    x = 72,665.42

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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.