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Finding the Fourth Proportional to 191,533.60, 264,313.88 and 105,490.94

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Solution

The fourth proportional to 191,533.60, 264,313.88 and 105,490.94 is: 145,576.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,533.60 : 264,313.88 = 105,490.94 : x
  2. Step 2: Convert to fraction form
    191,533.60/264,313.88 = 105,490.94/x
  3. Step 3: Cross multiply
    191,533.60x = 264,313.88 × 105,490.94
  4. Step 4: Simplify right side
    191,533.60x = 27,882,719,128.79
  5. Step 5: Solve for x
    x = 27,882,719,128.79/191,533.60
  6. Step 6: Final answer
    x = 145,576.13

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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.