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Finding the Fourth Proportional to 104,900.40, 144,763.20 and 62,460.72

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Solution

The fourth proportional to 104,900.40, 144,763.20 and 62,460.72 is: 86,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,900.40 : 144,763.20 = 62,460.72 : x
  2. Step 2: Convert to fraction form
    104,900.40/144,763.20 = 62,460.72/x
  3. Step 3: Cross multiply
    104,900.40x = 144,763.20 × 62,460.72
  4. Step 4: Simplify right side
    104,900.40x = 9,042,013,701.50
  5. Step 5: Solve for x
    x = 9,042,013,701.50/104,900.40
  6. Step 6: Final answer
    x = 86,196.18

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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.