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Finding the Fourth Proportional to 113,159.40, 156,095.01 and 70,644.12

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Solution

The fourth proportional to 113,159.40, 156,095.01 and 70,644.12 is: 97,448.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,159.40 : 156,095.01 = 70,644.12 : x
  2. Step 2: Convert to fraction form
    113,159.40/156,095.01 = 70,644.12/x
  3. Step 3: Cross multiply
    113,159.40x = 156,095.01 × 70,644.12
  4. Step 4: Simplify right side
    113,159.40x = 11,027,194,617.84
  5. Step 5: Solve for x
    x = 11,027,194,617.84/113,159.40
  6. Step 6: Final answer
    x = 97,448.33

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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.