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Finding the Fourth Proportional to 173,038.40, 258,981.60 and 125,518.40

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Solution

The fourth proportional to 173,038.40, 258,981.60 and 125,518.40 is: 187,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,038.40 : 258,981.60 = 125,518.40 : x
  2. Step 2: Convert to fraction form
    173,038.40/258,981.60 = 125,518.40/x
  3. Step 3: Cross multiply
    173,038.40x = 258,981.60 × 125,518.40
  4. Step 4: Simplify right side
    173,038.40x = 32,506,956,061.44
  5. Step 5: Solve for x
    x = 32,506,956,061.44/173,038.40
  6. Step 6: Final answer
    x = 187,859.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.