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Finding the Fourth Proportional to 545,062.16, 817,596.89 and 190,074.80

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Solution

The fourth proportional to 545,062.16, 817,596.89 and 190,074.80 is: 285,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,062.16 : 817,596.89 = 190,074.80 : x
  2. Step 2: Convert to fraction form
    545,062.16/817,596.89 = 190,074.80/x
  3. Step 3: Cross multiply
    545,062.16x = 817,596.89 × 190,074.80
  4. Step 4: Simplify right side
    545,062.16x = 155,404,564,397.00
  5. Step 5: Solve for x
    x = 155,404,564,397.00/545,062.16
  6. Step 6: Final answer
    x = 285,113.47

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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.