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Finding the Fourth Proportional to 535,147.86, 802,643.95 and 155,966.80

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Solution

The fourth proportional to 535,147.86, 802,643.95 and 155,966.80 is: 233,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,147.86 : 802,643.95 = 155,966.80 : x
  2. Step 2: Convert to fraction form
    535,147.86/802,643.95 = 155,966.80/x
  3. Step 3: Cross multiply
    535,147.86x = 802,643.95 × 155,966.80
  4. Step 4: Simplify right side
    535,147.86x = 125,185,808,420.86
  5. Step 5: Solve for x
    x = 125,185,808,420.86/535,147.86
  6. Step 6: Final answer
    x = 233,927.51

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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.