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Finding the Fourth Proportional to 156,574.80, 211,531.50 and 156,574.80

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Solution

The fourth proportional to 156,574.80, 211,531.50 and 156,574.80 is: 211,531.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,574.80 : 211,531.50 = 156,574.80 : x
  2. Step 2: Convert to fraction form
    156,574.80/211,531.50 = 156,574.80/x
  3. Step 3: Cross multiply
    156,574.80x = 211,531.50 × 156,574.80
  4. Step 4: Simplify right side
    156,574.80x = 33,120,502,306.20
  5. Step 5: Solve for x
    x = 33,120,502,306.20/156,574.80
  6. Step 6: Final answer
    x = 211,531.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.