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Finding the Fourth Proportional to 178,043.50, 245,700.04 and 98,555.50

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Solution

The fourth proportional to 178,043.50, 245,700.04 and 98,555.50 is: 136,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,043.50 : 245,700.04 = 98,555.50 : x
  2. Step 2: Convert to fraction form
    178,043.50/245,700.04 = 98,555.50/x
  3. Step 3: Cross multiply
    178,043.50x = 245,700.04 × 98,555.50
  4. Step 4: Simplify right side
    178,043.50x = 24,215,090,292.22
  5. Step 5: Solve for x
    x = 24,215,090,292.22/178,043.50
  6. Step 6: Final answer
    x = 136,006.60

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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.