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Finding the Fourth Proportional to 139,637.16, 192,695.49 and 75,973.59

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Solution

The fourth proportional to 139,637.16, 192,695.49 and 75,973.59 is: 104,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,637.16 : 192,695.49 = 75,973.59 : x
  2. Step 2: Convert to fraction form
    139,637.16/192,695.49 = 75,973.59/x
  3. Step 3: Cross multiply
    139,637.16x = 192,695.49 × 75,973.59
  4. Step 4: Simplify right side
    139,637.16x = 14,639,768,152.11
  5. Step 5: Solve for x
    x = 14,639,768,152.11/139,637.16
  6. Step 6: Final answer
    x = 104,841.49

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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.