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Finding the Fourth Proportional to 191,384.55, 264,108.60 and 105,341.67

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Solution

The fourth proportional to 191,384.55, 264,108.60 and 105,341.67 is: 145,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,384.55 : 264,108.60 = 105,341.67 : x
  2. Step 2: Convert to fraction form
    191,384.55/264,108.60 = 105,341.67/x
  3. Step 3: Cross multiply
    191,384.55x = 264,108.60 × 105,341.67
  4. Step 4: Simplify right side
    191,384.55x = 27,821,640,985.36
  5. Step 5: Solve for x
    x = 27,821,640,985.36/191,384.55
  6. Step 6: Final answer
    x = 145,370.36

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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.