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Finding the Fourth Proportional to 90,353.25, 124,689.29 and 52,629.93

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Solution

The fourth proportional to 90,353.25, 124,689.29 and 52,629.93 is: 72,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,353.25 : 124,689.29 = 52,629.93 : x
  2. Step 2: Convert to fraction form
    90,353.25/124,689.29 = 52,629.93/x
  3. Step 3: Cross multiply
    90,353.25x = 124,689.29 × 52,629.93
  4. Step 4: Simplify right side
    90,353.25x = 6,562,388,341.30
  5. Step 5: Solve for x
    x = 6,562,388,341.30/90,353.25
  6. Step 6: Final answer
    x = 72,630.35

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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.