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Finding the Fourth Proportional to 186,900.48, 280,242.99 and 127,807.74

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Solution

The fourth proportional to 186,900.48, 280,242.99 and 127,807.74 is: 191,637.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,900.48 : 280,242.99 = 127,807.74 : x
  2. Step 2: Convert to fraction form
    186,900.48/280,242.99 = 127,807.74/x
  3. Step 3: Cross multiply
    186,900.48x = 280,242.99 × 127,807.74
  4. Step 4: Simplify right side
    186,900.48x = 35,817,223,202.74
  5. Step 5: Solve for x
    x = 35,817,223,202.74/186,900.48
  6. Step 6: Final answer
    x = 191,637.94

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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.