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Finding the Fourth Proportional to 147,011.76, 202,875.84 and 79,943.76

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Solution

The fourth proportional to 147,011.76, 202,875.84 and 79,943.76 is: 110,322.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,011.76 : 202,875.84 = 79,943.76 : x
  2. Step 2: Convert to fraction form
    147,011.76/202,875.84 = 79,943.76/x
  3. Step 3: Cross multiply
    147,011.76x = 202,875.84 × 79,943.76
  4. Step 4: Simplify right side
    147,011.76x = 16,218,657,462.76
  5. Step 5: Solve for x
    x = 16,218,657,462.76/147,011.76
  6. Step 6: Final answer
    x = 110,322.18

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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.