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Finding the Fourth Proportional to 173,639.45, 243,445.15 and 173,639.45

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Solution

The fourth proportional to 173,639.45, 243,445.15 and 173,639.45 is: 243,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,639.45 : 243,445.15 = 173,639.45 : x
  2. Step 2: Convert to fraction form
    173,639.45/243,445.15 = 173,639.45/x
  3. Step 3: Cross multiply
    173,639.45x = 243,445.15 × 173,639.45
  4. Step 4: Simplify right side
    173,639.45x = 42,271,681,951.17
  5. Step 5: Solve for x
    x = 42,271,681,951.17/173,639.45
  6. Step 6: Final answer
    x = 243,445.15

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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.