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Finding the Fourth Proportional to 186,211.58, 256,970.34 and 101,328.71

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Solution

The fourth proportional to 186,211.58, 256,970.34 and 101,328.71 is: 139,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,211.58 : 256,970.34 = 101,328.71 : x
  2. Step 2: Convert to fraction form
    186,211.58/256,970.34 = 101,328.71/x
  3. Step 3: Cross multiply
    186,211.58x = 256,970.34 × 101,328.71
  4. Step 4: Simplify right side
    186,211.58x = 26,038,471,775.61
  5. Step 5: Solve for x
    x = 26,038,471,775.61/186,211.58
  6. Step 6: Final answer
    x = 139,832.72

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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.