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Finding the Fourth Proportional to 140,762.16, 211,143.40 and 42,266.16

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Solution

The fourth proportional to 140,762.16, 211,143.40 and 42,266.16 is: 63,399.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,762.16 : 211,143.40 = 42,266.16 : x
  2. Step 2: Convert to fraction form
    140,762.16/211,143.40 = 42,266.16/x
  3. Step 3: Cross multiply
    140,762.16x = 211,143.40 × 42,266.16
  4. Step 4: Simplify right side
    140,762.16x = 8,924,220,727.34
  5. Step 5: Solve for x
    x = 8,924,220,727.34/140,762.16
  6. Step 6: Final answer
    x = 63,399.29

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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.