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Finding the Fourth Proportional to 528,061.40, 791,775.77 and 168,076.76

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Solution

The fourth proportional to 528,061.40, 791,775.77 and 168,076.76 is: 252,014.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,061.40 : 791,775.77 = 168,076.76 : x
  2. Step 2: Convert to fraction form
    528,061.40/791,775.77 = 168,076.76/x
  3. Step 3: Cross multiply
    528,061.40x = 791,775.77 × 168,076.76
  4. Step 4: Simplify right side
    528,061.40x = 133,079,106,068.11
  5. Step 5: Solve for x
    x = 133,079,106,068.11/528,061.40
  6. Step 6: Final answer
    x = 252,014.46

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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.