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Finding the Fourth Proportional to 124,354.98, 171,637.57 and 79,024.12

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Solution

The fourth proportional to 124,354.98, 171,637.57 and 79,024.12 is: 109,070.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,354.98 : 171,637.57 = 79,024.12 : x
  2. Step 2: Convert to fraction form
    124,354.98/171,637.57 = 79,024.12/x
  3. Step 3: Cross multiply
    124,354.98x = 171,637.57 × 79,024.12
  4. Step 4: Simplify right side
    124,354.98x = 13,563,507,928.19
  5. Step 5: Solve for x
    x = 13,563,507,928.19/124,354.98
  6. Step 6: Final answer
    x = 109,070.89

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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.