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Finding the Fourth Proportional to 105,248.50, 145,243.07 and 59,926.50

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Solution

The fourth proportional to 105,248.50, 145,243.07 and 59,926.50 is: 82,698.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,248.50 : 145,243.07 = 59,926.50 : x
  2. Step 2: Convert to fraction form
    105,248.50/145,243.07 = 59,926.50/x
  3. Step 3: Cross multiply
    105,248.50x = 145,243.07 × 59,926.50
  4. Step 4: Simplify right side
    105,248.50x = 8,703,908,759.45
  5. Step 5: Solve for x
    x = 8,703,908,759.45/105,248.50
  6. Step 6: Final answer
    x = 82,698.65

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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.