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Finding the Fourth Proportional to 525,873.80, 788,810.70 and 151,934.60

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Solution

The fourth proportional to 525,873.80, 788,810.70 and 151,934.60 is: 227,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,873.80 : 788,810.70 = 151,934.60 : x
  2. Step 2: Convert to fraction form
    525,873.80/788,810.70 = 151,934.60/x
  3. Step 3: Cross multiply
    525,873.80x = 788,810.70 × 151,934.60
  4. Step 4: Simplify right side
    525,873.80x = 119,847,638,180.22
  5. Step 5: Solve for x
    x = 119,847,638,180.22/525,873.80
  6. Step 6: Final answer
    x = 227,901.90

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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.