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Finding the Fourth Proportional to 180,525.90, 249,127.71 and 99,954.90

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Solution

The fourth proportional to 180,525.90, 249,127.71 and 99,954.90 is: 137,938.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,525.90 : 249,127.71 = 99,954.90 : x
  2. Step 2: Convert to fraction form
    180,525.90/249,127.71 = 99,954.90/x
  3. Step 3: Cross multiply
    180,525.90x = 249,127.71 × 99,954.90
  4. Step 4: Simplify right side
    180,525.90x = 24,901,535,340.28
  5. Step 5: Solve for x
    x = 24,901,535,340.28/180,525.90
  6. Step 6: Final answer
    x = 137,938.85

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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.