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Finding the Fourth Proportional to 161,752.20, 242,541.90 and 56,574.60

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Solution

The fourth proportional to 161,752.20, 242,541.90 and 56,574.60 is: 84,831.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,752.20 : 242,541.90 = 56,574.60 : x
  2. Step 2: Convert to fraction form
    161,752.20/242,541.90 = 56,574.60/x
  3. Step 3: Cross multiply
    161,752.20x = 242,541.90 × 56,574.60
  4. Step 4: Simplify right side
    161,752.20x = 13,721,710,975.74
  5. Step 5: Solve for x
    x = 13,721,710,975.74/161,752.20
  6. Step 6: Final answer
    x = 84,831.68

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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.