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Finding the Fourth Proportional to 316,716.01, 474,738.67 and 148,094.67

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Solution

The fourth proportional to 316,716.01, 474,738.67 and 148,094.67 is: 221,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,716.01 : 474,738.67 = 148,094.67 : x
  2. Step 2: Convert to fraction form
    316,716.01/474,738.67 = 148,094.67/x
  3. Step 3: Cross multiply
    316,716.01x = 474,738.67 × 148,094.67
  4. Step 4: Simplify right side
    316,716.01x = 70,306,266,669.89
  5. Step 5: Solve for x
    x = 70,306,266,669.89/316,716.01
  6. Step 6: Final answer
    x = 221,985.20

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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.