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Finding the Fourth Proportional to 181,068.60, 249,904.62 and 105,617.04

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Solution

The fourth proportional to 181,068.60, 249,904.62 and 105,617.04 is: 145,768.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,068.60 : 249,904.62 = 105,617.04 : x
  2. Step 2: Convert to fraction form
    181,068.60/249,904.62 = 105,617.04/x
  3. Step 3: Cross multiply
    181,068.60x = 249,904.62 × 105,617.04
  4. Step 4: Simplify right side
    181,068.60x = 26,394,186,246.72
  5. Step 5: Solve for x
    x = 26,394,186,246.72/181,068.60
  6. Step 6: Final answer
    x = 145,768.99

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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.