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Finding the Fourth Proportional to 152,385.40, 228,140.70 and 93,336.40

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Solution

The fourth proportional to 152,385.40, 228,140.70 and 93,336.40 is: 139,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,385.40 : 228,140.70 = 93,336.40 : x
  2. Step 2: Convert to fraction form
    152,385.40/228,140.70 = 93,336.40/x
  3. Step 3: Cross multiply
    152,385.40x = 228,140.70 × 93,336.40
  4. Step 4: Simplify right side
    152,385.40x = 21,293,831,631.48
  5. Step 5: Solve for x
    x = 21,293,831,631.48/152,385.40
  6. Step 6: Final answer
    x = 139,736.69

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1.5x scale

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.