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Finding the Fourth Proportional to 175,312.40, 262,968.60 and 100,403.60

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Solution

The fourth proportional to 175,312.40, 262,968.60 and 100,403.60 is: 150,605.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,312.40 : 262,968.60 = 100,403.60 : x
  2. Step 2: Convert to fraction form
    175,312.40/262,968.60 = 100,403.60/x
  3. Step 3: Cross multiply
    175,312.40x = 262,968.60 × 100,403.60
  4. Step 4: Simplify right side
    175,312.40x = 26,402,994,126.96
  5. Step 5: Solve for x
    x = 26,402,994,126.96/175,312.40
  6. Step 6: Final answer
    x = 150,605.40

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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.