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Finding the Fourth Proportional to 180,437.72, 249,069.68 and 104,986.22

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Solution

The fourth proportional to 180,437.72, 249,069.68 and 104,986.22 is: 144,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,437.72 : 249,069.68 = 104,986.22 : x
  2. Step 2: Convert to fraction form
    180,437.72/249,069.68 = 104,986.22/x
  3. Step 3: Cross multiply
    180,437.72x = 249,069.68 × 104,986.22
  4. Step 4: Simplify right side
    180,437.72x = 26,148,882,449.53
  5. Step 5: Solve for x
    x = 26,148,882,449.53/180,437.72
  6. Step 6: Final answer
    x = 144,919.16

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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.