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Finding the Fourth Proportional to 117,829.68, 162,626.04 and 75,386.76

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Solution

The fourth proportional to 117,829.68, 162,626.04 and 75,386.76 is: 104,047.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,829.68 : 162,626.04 = 75,386.76 : x
  2. Step 2: Convert to fraction form
    117,829.68/162,626.04 = 75,386.76/x
  3. Step 3: Cross multiply
    117,829.68x = 162,626.04 × 75,386.76
  4. Step 4: Simplify right side
    117,829.68x = 12,259,850,247.23
  5. Step 5: Solve for x
    x = 12,259,850,247.23/117,829.68
  6. Step 6: Final answer
    x = 104,047.22

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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.