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Finding the Fourth Proportional to 180,878.68, 249,736.28 and 112,999.08

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Solution

The fourth proportional to 180,878.68, 249,736.28 and 112,999.08 is: 156,016.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,878.68 : 249,736.28 = 112,999.08 : x
  2. Step 2: Convert to fraction form
    180,878.68/249,736.28 = 112,999.08/x
  3. Step 3: Cross multiply
    180,878.68x = 249,736.28 × 112,999.08
  4. Step 4: Simplify right side
    180,878.68x = 28,219,969,882.62
  5. Step 5: Solve for x
    x = 28,219,969,882.62/180,878.68
  6. Step 6: Final answer
    x = 156,016.01

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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.