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Finding the Fourth Proportional to 103,489.32, 155,925.53 and 93,505.67

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Solution

The fourth proportional to 103,489.32, 155,925.53 and 93,505.67 is: 140,883.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,489.32 : 155,925.53 = 93,505.67 : x
  2. Step 2: Convert to fraction form
    103,489.32/155,925.53 = 93,505.67/x
  3. Step 3: Cross multiply
    103,489.32x = 155,925.53 × 93,505.67
  4. Step 4: Simplify right side
    103,489.32x = 14,579,920,606.89
  5. Step 5: Solve for x
    x = 14,579,920,606.89/103,489.32
  6. Step 6: Final answer
    x = 140,883.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.