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Finding the Fourth Proportional to 186,068.68, 256,769.38 and 105,503.88

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Solution

The fourth proportional to 186,068.68, 256,769.38 and 105,503.88 is: 145,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,068.68 : 256,769.38 = 105,503.88 : x
  2. Step 2: Convert to fraction form
    186,068.68/256,769.38 = 105,503.88/x
  3. Step 3: Cross multiply
    186,068.68x = 256,769.38 × 105,503.88
  4. Step 4: Simplify right side
    186,068.68x = 27,090,165,855.19
  5. Step 5: Solve for x
    x = 27,090,165,855.19/186,068.68
  6. Step 6: Final answer
    x = 145,592.29

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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.