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Finding the Fourth Proportional to 130,338.17, 179,866.59 and 70,722.17

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Solution

The fourth proportional to 130,338.17, 179,866.59 and 70,722.17 is: 97,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,338.17 : 179,866.59 = 70,722.17 : x
  2. Step 2: Convert to fraction form
    130,338.17/179,866.59 = 70,722.17/x
  3. Step 3: Cross multiply
    130,338.17x = 179,866.59 × 70,722.17
  4. Step 4: Simplify right side
    130,338.17x = 12,720,555,555.30
  5. Step 5: Solve for x
    x = 12,720,555,555.30/130,338.17
  6. Step 6: Final answer
    x = 97,596.55

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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.