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Finding the Fourth Proportional to 148,823.40, 207,886.20 and 148,823.40

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Solution

The fourth proportional to 148,823.40, 207,886.20 and 148,823.40 is: 207,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,823.40 : 207,886.20 = 148,823.40 : x
  2. Step 2: Convert to fraction form
    148,823.40/207,886.20 = 148,823.40/x
  3. Step 3: Cross multiply
    148,823.40x = 207,886.20 × 148,823.40
  4. Step 4: Simplify right side
    148,823.40x = 30,938,331,097.08
  5. Step 5: Solve for x
    x = 30,938,331,097.08/148,823.40
  6. Step 6: Final answer
    x = 207,886.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.