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Finding the Fourth Proportional to 153,920.67, 212,352.07 and 93,468.48

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Solution

The fourth proportional to 153,920.67, 212,352.07 and 93,468.48 is: 128,951.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,920.67 : 212,352.07 = 93,468.48 : x
  2. Step 2: Convert to fraction form
    153,920.67/212,352.07 = 93,468.48/x
  3. Step 3: Cross multiply
    153,920.67x = 212,352.07 × 93,468.48
  4. Step 4: Simplify right side
    153,920.67x = 19,848,225,207.75
  5. Step 5: Solve for x
    x = 19,848,225,207.75/153,920.67
  6. Step 6: Final answer
    x = 128,951.01

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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.