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Finding the Fourth Proportional to 113,645.25, 156,897.72 and 101,035.17

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Solution

The fourth proportional to 113,645.25, 156,897.72 and 101,035.17 is: 139,488.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,645.25 : 156,897.72 = 101,035.17 : x
  2. Step 2: Convert to fraction form
    113,645.25/156,897.72 = 101,035.17/x
  3. Step 3: Cross multiply
    113,645.25x = 156,897.72 × 101,035.17
  4. Step 4: Simplify right side
    113,645.25x = 15,852,187,812.81
  5. Step 5: Solve for x
    x = 15,852,187,812.81/113,645.25
  6. Step 6: Final answer
    x = 139,488.34

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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.