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Finding the Fourth Proportional to 191,545.54, 264,344.78 and 105,504.50

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Solution

The fourth proportional to 191,545.54, 264,344.78 and 105,504.50 is: 145,602.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,545.54 : 264,344.78 = 105,504.50 : x
  2. Step 2: Convert to fraction form
    191,545.54/264,344.78 = 105,504.50/x
  3. Step 3: Cross multiply
    191,545.54x = 264,344.78 × 105,504.50
  4. Step 4: Simplify right side
    191,545.54x = 27,889,563,841.51
  5. Step 5: Solve for x
    x = 27,889,563,841.51/191,545.54
  6. Step 6: Final answer
    x = 145,602.79

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1.5x scale

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.