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Finding the Fourth Proportional to 255,689.94, 352,705.80 and 160,030.56

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Solution

The fourth proportional to 255,689.94, 352,705.80 and 160,030.56 is: 220,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,689.94 : 352,705.80 = 160,030.56 : x
  2. Step 2: Convert to fraction form
    255,689.94/352,705.80 = 160,030.56/x
  3. Step 3: Cross multiply
    255,689.94x = 352,705.80 × 160,030.56
  4. Step 4: Simplify right side
    255,689.94x = 56,443,706,689.25
  5. Step 5: Solve for x
    x = 56,443,706,689.25/255,689.94
  6. Step 6: Final answer
    x = 220,750.60

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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.