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Finding the Fourth Proportional to 180,915.93, 249,665.49 and 100,348.67

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Solution

The fourth proportional to 180,915.93, 249,665.49 and 100,348.67 is: 138,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,915.93 : 249,665.49 = 100,348.67 : x
  2. Step 2: Convert to fraction form
    180,915.93/249,665.49 = 100,348.67/x
  3. Step 3: Cross multiply
    180,915.93x = 249,665.49 × 100,348.67
  4. Step 4: Simplify right side
    180,915.93x = 25,053,600,490.56
  5. Step 5: Solve for x
    x = 25,053,600,490.56/180,915.93
  6. Step 6: Final answer
    x = 138,482.00

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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.