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Finding the Fourth Proportional to 186,103.65, 256,881.48 and 105,584.67

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Solution

The fourth proportional to 186,103.65, 256,881.48 and 105,584.67 is: 145,740.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,103.65 : 256,881.48 = 105,584.67 : x
  2. Step 2: Convert to fraction form
    186,103.65/256,881.48 = 105,584.67/x
  3. Step 3: Cross multiply
    186,103.65x = 256,881.48 × 105,584.67
  4. Step 4: Simplify right side
    186,103.65x = 27,122,746,294.91
  5. Step 5: Solve for x
    x = 27,122,746,294.91/186,103.65
  6. Step 6: Final answer
    x = 145,740.00

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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.