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Finding the Fourth Proportional to 186,903.48, 280,247.49 and 127,810.74

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Solution

The fourth proportional to 186,903.48, 280,247.49 and 127,810.74 is: 191,642.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,903.48 : 280,247.49 = 127,810.74 : x
  2. Step 2: Convert to fraction form
    186,903.48/280,247.49 = 127,810.74/x
  3. Step 3: Cross multiply
    186,903.48x = 280,247.49 × 127,810.74
  4. Step 4: Simplify right side
    186,903.48x = 35,818,639,080.04
  5. Step 5: Solve for x
    x = 35,818,639,080.04/186,903.48
  6. Step 6: Final answer
    x = 191,642.44

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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.