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Finding the Fourth Proportional to 157,165.90, 216,907.43 and 88,266.69

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Solution

The fourth proportional to 157,165.90, 216,907.43 and 88,266.69 is: 121,818.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,165.90 : 216,907.43 = 88,266.69 : x
  2. Step 2: Convert to fraction form
    157,165.90/216,907.43 = 88,266.69/x
  3. Step 3: Cross multiply
    157,165.90x = 216,907.43 × 88,266.69
  4. Step 4: Simplify right side
    157,165.90x = 19,145,700,441.17
  5. Step 5: Solve for x
    x = 19,145,700,441.17/157,165.90
  6. Step 6: Final answer
    x = 121,818.41

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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.