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Finding the Fourth Proportional to 119,571.16, 165,001.82 and 65,854.36

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Solution

The fourth proportional to 119,571.16, 165,001.82 and 65,854.36 is: 90,875.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,571.16 : 165,001.82 = 65,854.36 : x
  2. Step 2: Convert to fraction form
    119,571.16/165,001.82 = 65,854.36/x
  3. Step 3: Cross multiply
    119,571.16x = 165,001.82 × 65,854.36
  4. Step 4: Simplify right side
    119,571.16x = 10,866,089,254.94
  5. Step 5: Solve for x
    x = 10,866,089,254.94/119,571.16
  6. Step 6: Final answer
    x = 90,875.50

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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.