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Finding the Fourth Proportional to 90,114.66, 124,354.71 and 53,822.26

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Solution

The fourth proportional to 90,114.66, 124,354.71 and 53,822.26 is: 74,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,114.66 : 124,354.71 = 53,822.26 : x
  2. Step 2: Convert to fraction form
    90,114.66/124,354.71 = 53,822.26/x
  3. Step 3: Cross multiply
    90,114.66x = 124,354.71 × 53,822.26
  4. Step 4: Simplify right side
    90,114.66x = 6,693,051,533.84
  5. Step 5: Solve for x
    x = 6,693,051,533.84/90,114.66
  6. Step 6: Final answer
    x = 74,272.62

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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.