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Finding the Fourth Proportional to 140,839.48, 211,259.70 and 35,658.40

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Solution

The fourth proportional to 140,839.48, 211,259.70 and 35,658.40 is: 53,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,839.48 : 211,259.70 = 35,658.40 : x
  2. Step 2: Convert to fraction form
    140,839.48/211,259.70 = 35,658.40/x
  3. Step 3: Cross multiply
    140,839.48x = 211,259.70 × 35,658.40
  4. Step 4: Simplify right side
    140,839.48x = 7,533,182,886.48
  5. Step 5: Solve for x
    x = 7,533,182,886.48/140,839.48
  6. Step 6: Final answer
    x = 53,487.72

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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.