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Finding the Fourth Proportional to 255,603.15, 352,724.49 and 160,162.47

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Solution

The fourth proportional to 255,603.15, 352,724.49 and 160,162.47 is: 221,019.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,603.15 : 352,724.49 = 160,162.47 : x
  2. Step 2: Convert to fraction form
    255,603.15/352,724.49 = 160,162.47/x
  3. Step 3: Cross multiply
    255,603.15x = 352,724.49 × 160,162.47
  4. Step 4: Simplify right side
    255,603.15x = 56,493,225,547.89
  5. Step 5: Solve for x
    x = 56,493,225,547.89/255,603.15
  6. Step 6: Final answer
    x = 221,019.29

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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.