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Finding the Fourth Proportional to 186,088.55, 256,860.70 and 109,602.47

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Solution

The fourth proportional to 186,088.55, 256,860.70 and 109,602.47 is: 151,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,088.55 : 256,860.70 = 109,602.47 : x
  2. Step 2: Convert to fraction form
    186,088.55/256,860.70 = 109,602.47/x
  3. Step 3: Cross multiply
    186,088.55x = 256,860.70 × 109,602.47
  4. Step 4: Simplify right side
    186,088.55x = 28,152,567,534.07
  5. Step 5: Solve for x
    x = 28,152,567,534.07/186,088.55
  6. Step 6: Final answer
    x = 151,285.87

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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.