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Finding the Fourth Proportional to 357,005.94, 535,500.08 and 87,136.08

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Solution

The fourth proportional to 357,005.94, 535,500.08 and 87,136.08 is: 130,701.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,005.94 : 535,500.08 = 87,136.08 : x
  2. Step 2: Convert to fraction form
    357,005.94/535,500.08 = 87,136.08/x
  3. Step 3: Cross multiply
    357,005.94x = 535,500.08 × 87,136.08
  4. Step 4: Simplify right side
    357,005.94x = 46,661,377,810.89
  5. Step 5: Solve for x
    x = 46,661,377,810.89/357,005.94
  6. Step 6: Final answer
    x = 130,701.96

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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.