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Finding the Fourth Proportional to 180,906.67, 249,666.53 and 100,360.14

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Solution

The fourth proportional to 180,906.67, 249,666.53 and 100,360.14 is: 138,505.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,906.67 : 249,666.53 = 100,360.14 : x
  2. Step 2: Convert to fraction form
    180,906.67/249,666.53 = 100,360.14/x
  3. Step 3: Cross multiply
    180,906.67x = 249,666.53 × 100,360.14
  4. Step 4: Simplify right side
    180,906.67x = 25,056,567,904.11
  5. Step 5: Solve for x
    x = 25,056,567,904.11/180,906.67
  6. Step 6: Final answer
    x = 138,505.50

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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.