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Finding the Fourth Proportional to 121,853.60, 182,702.53 and 58,547.75

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Solution

The fourth proportional to 121,853.60, 182,702.53 and 58,547.75 is: 87,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,853.60 : 182,702.53 = 58,547.75 : x
  2. Step 2: Convert to fraction form
    121,853.60/182,702.53 = 58,547.75/x
  3. Step 3: Cross multiply
    121,853.60x = 182,702.53 × 58,547.75
  4. Step 4: Simplify right side
    121,853.60x = 10,696,821,210.48
  5. Step 5: Solve for x
    x = 10,696,821,210.48/121,853.60
  6. Step 6: Final answer
    x = 87,784.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.