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Finding the Fourth Proportional to 312,068.85, 430,666.05 and 176,094.87

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Solution

The fourth proportional to 312,068.85, 430,666.05 and 176,094.87 is: 243,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,068.85 : 430,666.05 = 176,094.87 : x
  2. Step 2: Convert to fraction form
    312,068.85/430,666.05 = 176,094.87/x
  3. Step 3: Cross multiply
    312,068.85x = 430,666.05 × 176,094.87
  4. Step 4: Simplify right side
    312,068.85x = 75,838,082,088.16
  5. Step 5: Solve for x
    x = 75,838,082,088.16/312,068.85
  6. Step 6: Final answer
    x = 243,017.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.