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Finding the Fourth Proportional to 152,762.20, 210,764.14 and 88,223.16

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Solution

The fourth proportional to 152,762.20, 210,764.14 and 88,223.16 is: 121,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,762.20 : 210,764.14 = 88,223.16 : x
  2. Step 2: Convert to fraction form
    152,762.20/210,764.14 = 88,223.16/x
  3. Step 3: Cross multiply
    152,762.20x = 210,764.14 × 88,223.16
  4. Step 4: Simplify right side
    152,762.20x = 18,594,278,445.48
  5. Step 5: Solve for x
    x = 18,594,278,445.48/152,762.20
  6. Step 6: Final answer
    x = 121,720.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.