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Finding the Fourth Proportional to 104,802.97, 144,724.18 and 66,574.89

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Solution

The fourth proportional to 104,802.97, 144,724.18 and 66,574.89 is: 91,934.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,802.97 : 144,724.18 = 66,574.89 : x
  2. Step 2: Convert to fraction form
    104,802.97/144,724.18 = 66,574.89/x
  3. Step 3: Cross multiply
    104,802.97x = 144,724.18 × 66,574.89
  4. Step 4: Simplify right side
    104,802.97x = 9,634,996,363.84
  5. Step 5: Solve for x
    x = 9,634,996,363.84/104,802.97
  6. Step 6: Final answer
    x = 91,934.38

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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.