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Finding the Fourth Proportional to 186,901.80, 280,352.70 and 181,981.05

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Solution

The fourth proportional to 186,901.80, 280,352.70 and 181,981.05 is: 272,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,901.80 : 280,352.70 = 181,981.05 : x
  2. Step 2: Convert to fraction form
    186,901.80/280,352.70 = 181,981.05/x
  3. Step 3: Cross multiply
    186,901.80x = 280,352.70 × 181,981.05
  4. Step 4: Simplify right side
    186,901.80x = 51,018,878,716.34
  5. Step 5: Solve for x
    x = 51,018,878,716.34/186,901.80
  6. Step 6: Final answer
    x = 272,971.58

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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.