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Finding the Fourth Proportional to 186,280.66, 257,060.16 and 105,703.39

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Solution

The fourth proportional to 186,280.66, 257,060.16 and 105,703.39 is: 145,866.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,280.66 : 257,060.16 = 105,703.39 : x
  2. Step 2: Convert to fraction form
    186,280.66/257,060.16 = 105,703.39/x
  3. Step 3: Cross multiply
    186,280.66x = 257,060.16 × 105,703.39
  4. Step 4: Simplify right side
    186,280.66x = 27,172,130,345.94
  5. Step 5: Solve for x
    x = 27,172,130,345.94/186,280.66
  6. Step 6: Final answer
    x = 145,866.62

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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.