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Finding the Fourth Proportional to 180,985.16, 249,675.54 and 112,958.12

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Solution

The fourth proportional to 180,985.16, 249,675.54 and 112,958.12 is: 155,829.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,985.16 : 249,675.54 = 112,958.12 : x
  2. Step 2: Convert to fraction form
    180,985.16/249,675.54 = 112,958.12/x
  3. Step 3: Cross multiply
    180,985.16x = 249,675.54 × 112,958.12
  4. Step 4: Simplify right side
    180,985.16x = 28,202,879,608.38
  5. Step 5: Solve for x
    x = 28,202,879,608.38/180,985.16
  6. Step 6: Final answer
    x = 155,829.79

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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.