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Finding the Fourth Proportional to 191,551.59, 264,347.21 and 105,516.81

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Solution

The fourth proportional to 191,551.59, 264,347.21 and 105,516.81 is: 145,616.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,551.59 : 264,347.21 = 105,516.81 : x
  2. Step 2: Convert to fraction form
    191,551.59/264,347.21 = 105,516.81/x
  3. Step 3: Cross multiply
    191,551.59x = 264,347.21 × 105,516.81
  4. Step 4: Simplify right side
    191,551.59x = 27,893,074,331.60
  5. Step 5: Solve for x
    x = 27,893,074,331.60/191,551.59
  6. Step 6: Final answer
    x = 145,616.51

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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.