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Finding the Fourth Proportional to 114,142.88, 157,521.80 and 63,154.72

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Solution

The fourth proportional to 114,142.88, 157,521.80 and 63,154.72 is: 87,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,142.88 : 157,521.80 = 63,154.72 : x
  2. Step 2: Convert to fraction form
    114,142.88/157,521.80 = 63,154.72/x
  3. Step 3: Cross multiply
    114,142.88x = 157,521.80 × 63,154.72
  4. Step 4: Simplify right side
    114,142.88x = 9,948,245,172.90
  5. Step 5: Solve for x
    x = 9,948,245,172.90/114,142.88
  6. Step 6: Final answer
    x = 87,156.07

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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.