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Finding the Fourth Proportional to 130,750.65, 180,220.28 and 92,460.81

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Solution

The fourth proportional to 130,750.65, 180,220.28 and 92,460.81 is: 127,443.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,750.65 : 180,220.28 = 92,460.81 : x
  2. Step 2: Convert to fraction form
    130,750.65/180,220.28 = 92,460.81/x
  3. Step 3: Cross multiply
    130,750.65x = 180,220.28 × 92,460.81
  4. Step 4: Simplify right side
    130,750.65x = 16,663,312,604.92
  5. Step 5: Solve for x
    x = 16,663,312,604.92/130,750.65
  6. Step 6: Final answer
    x = 127,443.44

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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.