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Finding the Fourth Proportional to 141,248.40, 211,678.20 and 93,728.40

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Solution

The fourth proportional to 141,248.40, 211,678.20 and 93,728.40 is: 140,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,248.40 : 211,678.20 = 93,728.40 : x
  2. Step 2: Convert to fraction form
    141,248.40/211,678.20 = 93,728.40/x
  3. Step 3: Cross multiply
    141,248.40x = 211,678.20 × 93,728.40
  4. Step 4: Simplify right side
    141,248.40x = 19,840,259,000.88
  5. Step 5: Solve for x
    x = 19,840,259,000.88/141,248.40
  6. Step 6: Final answer
    x = 140,463.60

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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.