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Finding the Fourth Proportional to 117,151.90, 161,681.55 and 84,473.19

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Solution

The fourth proportional to 117,151.90, 161,681.55 and 84,473.19 is: 116,581.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,151.90 : 161,681.55 = 84,473.19 : x
  2. Step 2: Convert to fraction form
    117,151.90/161,681.55 = 84,473.19/x
  3. Step 3: Cross multiply
    117,151.90x = 161,681.55 × 84,473.19
  4. Step 4: Simplify right side
    117,151.90x = 13,657,756,292.64
  5. Step 5: Solve for x
    x = 13,657,756,292.64/117,151.90
  6. Step 6: Final answer
    x = 116,581.60

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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.