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Finding the Fourth Proportional to 178,120.32, 245,798.64 and 97,545.84

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Solution

The fourth proportional to 178,120.32, 245,798.64 and 97,545.84 is: 134,609.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,120.32 : 245,798.64 = 97,545.84 : x
  2. Step 2: Convert to fraction form
    178,120.32/245,798.64 = 97,545.84/x
  3. Step 3: Cross multiply
    178,120.32x = 245,798.64 × 97,545.84
  4. Step 4: Simplify right side
    178,120.32x = 23,976,634,809.66
  5. Step 5: Solve for x
    x = 23,976,634,809.66/178,120.32
  6. Step 6: Final answer
    x = 134,609.21

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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.