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Finding the Fourth Proportional to 191,453.93, 264,212.79 and 105,417.13

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Solution

The fourth proportional to 191,453.93, 264,212.79 and 105,417.13 is: 145,479.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,453.93 : 264,212.79 = 105,417.13 : x
  2. Step 2: Convert to fraction form
    191,453.93/264,212.79 = 105,417.13/x
  3. Step 3: Cross multiply
    191,453.93x = 264,212.79 × 105,417.13
  4. Step 4: Simplify right side
    191,453.93x = 27,852,554,031.09
  5. Step 5: Solve for x
    x = 27,852,554,031.09/191,453.93
  6. Step 6: Final answer
    x = 145,479.14

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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.