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Finding the Fourth Proportional to 207,287.60, 286,053.48 and 116,643.51

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Solution

The fourth proportional to 207,287.60, 286,053.48 and 116,643.51 is: 160,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,287.60 : 286,053.48 = 116,643.51 : x
  2. Step 2: Convert to fraction form
    207,287.60/286,053.48 = 116,643.51/x
  3. Step 3: Cross multiply
    207,287.60x = 286,053.48 × 116,643.51
  4. Step 4: Simplify right side
    207,287.60x = 33,366,281,954.91
  5. Step 5: Solve for x
    x = 33,366,281,954.91/207,287.60
  6. Step 6: Final answer
    x = 160,966.13

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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.