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Finding the Fourth Proportional to 105,025.40, 157,538.10 and 88,622.90

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Solution

The fourth proportional to 105,025.40, 157,538.10 and 88,622.90 is: 132,934.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,025.40 : 157,538.10 = 88,622.90 : x
  2. Step 2: Convert to fraction form
    105,025.40/157,538.10 = 88,622.90/x
  3. Step 3: Cross multiply
    105,025.40x = 157,538.10 × 88,622.90
  4. Step 4: Simplify right side
    105,025.40x = 13,961,483,282.49
  5. Step 5: Solve for x
    x = 13,961,483,282.49/105,025.40
  6. Step 6: Final answer
    x = 132,934.35

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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.