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Finding the Fourth Proportional to 140,760.16, 211,140.40 and 42,264.16

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Solution

The fourth proportional to 140,760.16, 211,140.40 and 42,264.16 is: 63,396.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,760.16 : 211,140.40 = 42,264.16 : x
  2. Step 2: Convert to fraction form
    140,760.16/211,140.40 = 42,264.16/x
  3. Step 3: Cross multiply
    140,760.16x = 211,140.40 × 42,264.16
  4. Step 4: Simplify right side
    140,760.16x = 8,923,671,648.06
  5. Step 5: Solve for x
    x = 8,923,671,648.06/140,760.16
  6. Step 6: Final answer
    x = 63,396.29

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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.