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Finding the Fourth Proportional to 152,205.60, 228,308.40 and 147,831.60

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Solution

The fourth proportional to 152,205.60, 228,308.40 and 147,831.60 is: 221,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,205.60 : 228,308.40 = 147,831.60 : x
  2. Step 2: Convert to fraction form
    152,205.60/228,308.40 = 147,831.60/x
  3. Step 3: Cross multiply
    152,205.60x = 228,308.40 × 147,831.60
  4. Step 4: Simplify right side
    152,205.60x = 33,751,196,065.44
  5. Step 5: Solve for x
    x = 33,751,196,065.44/152,205.60
  6. Step 6: Final answer
    x = 221,747.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.