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Finding the Fourth Proportional to 109,041.30, 163,561.95 and 49,992.30

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Solution

The fourth proportional to 109,041.30, 163,561.95 and 49,992.30 is: 74,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,041.30 : 163,561.95 = 49,992.30 : x
  2. Step 2: Convert to fraction form
    109,041.30/163,561.95 = 49,992.30/x
  3. Step 3: Cross multiply
    109,041.30x = 163,561.95 × 49,992.30
  4. Step 4: Simplify right side
    109,041.30x = 8,176,838,072.99
  5. Step 5: Solve for x
    x = 8,176,838,072.99/109,041.30
  6. Step 6: Final answer
    x = 74,988.45

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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.