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Finding the Fourth Proportional to 104,802.47, 144,723.49 and 66,574.39

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Solution

The fourth proportional to 104,802.47, 144,723.49 and 66,574.39 is: 91,933.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,802.47 : 144,723.49 = 66,574.39 : x
  2. Step 2: Convert to fraction form
    104,802.47/144,723.49 = 66,574.39/x
  3. Step 3: Cross multiply
    104,802.47x = 144,723.49 × 66,574.39
  4. Step 4: Simplify right side
    104,802.47x = 9,634,878,065.42
  5. Step 5: Solve for x
    x = 9,634,878,065.42/104,802.47
  6. Step 6: Final answer
    x = 91,933.69

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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.