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Finding the Fourth Proportional to 157,543.40, 236,430.30 and 104,935.40

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Solution

The fourth proportional to 157,543.40, 236,430.30 and 104,935.40 is: 157,479.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,543.40 : 236,430.30 = 104,935.40 : x
  2. Step 2: Convert to fraction form
    157,543.40/236,430.30 = 104,935.40/x
  3. Step 3: Cross multiply
    157,543.40x = 236,430.30 × 104,935.40
  4. Step 4: Simplify right side
    157,543.40x = 24,809,908,102.62
  5. Step 5: Solve for x
    x = 24,809,908,102.62/157,543.40
  6. Step 6: Final answer
    x = 157,479.83

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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.