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Finding the Fourth Proportional to 194,810.40, 292,215.60 and 186,937.20

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Solution

The fourth proportional to 194,810.40, 292,215.60 and 186,937.20 is: 280,405.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,810.40 : 292,215.60 = 186,937.20 : x
  2. Step 2: Convert to fraction form
    194,810.40/292,215.60 = 186,937.20/x
  3. Step 3: Cross multiply
    194,810.40x = 292,215.60 × 186,937.20
  4. Step 4: Simplify right side
    194,810.40x = 54,625,966,060.32
  5. Step 5: Solve for x
    x = 54,625,966,060.32/194,810.40
  6. Step 6: Final answer
    x = 280,405.80

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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.