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Finding the Fourth Proportional to 71,952.71, 99,307.44 and 45,118.22

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Solution

The fourth proportional to 71,952.71, 99,307.44 and 45,118.22 is: 62,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,952.71 : 99,307.44 = 45,118.22 : x
  2. Step 2: Convert to fraction form
    71,952.71/99,307.44 = 45,118.22/x
  3. Step 3: Cross multiply
    71,952.71x = 99,307.44 × 45,118.22
  4. Step 4: Simplify right side
    71,952.71x = 4,480,574,429.02
  5. Step 5: Solve for x
    x = 4,480,574,429.02/71,952.71
  6. Step 6: Final answer
    x = 62,271.10

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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.