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Finding the Fourth Proportional to 191,095.89, 286,642.76 and 48,940.89

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Solution

The fourth proportional to 191,095.89, 286,642.76 and 48,940.89 is: 73,411.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,095.89 : 286,642.76 = 48,940.89 : x
  2. Step 2: Convert to fraction form
    191,095.89/286,642.76 = 48,940.89/x
  3. Step 3: Cross multiply
    191,095.89x = 286,642.76 × 48,940.89
  4. Step 4: Simplify right side
    191,095.89x = 14,028,551,541.75
  5. Step 5: Solve for x
    x = 14,028,551,541.75/191,095.89
  6. Step 6: Final answer
    x = 73,411.06

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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.