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Finding the Fourth Proportional to 124,514.25, 171,829.67 and 79,802.25

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Solution

The fourth proportional to 124,514.25, 171,829.67 and 79,802.25 is: 110,127.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,514.25 : 171,829.67 = 79,802.25 : x
  2. Step 2: Convert to fraction form
    124,514.25/171,829.67 = 79,802.25/x
  3. Step 3: Cross multiply
    124,514.25x = 171,829.67 × 79,802.25
  4. Step 4: Simplify right side
    124,514.25x = 13,712,393,883.75
  5. Step 5: Solve for x
    x = 13,712,393,883.75/124,514.25
  6. Step 6: Final answer
    x = 110,127.11

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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.