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Finding the Fourth Proportional to 343,580.01, 515,402.81 and 106,859.13

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Solution

The fourth proportional to 343,580.01, 515,402.81 and 106,859.13 is: 160,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,580.01 : 515,402.81 = 106,859.13 : x
  2. Step 2: Convert to fraction form
    343,580.01/515,402.81 = 106,859.13/x
  3. Step 3: Cross multiply
    343,580.01x = 515,402.81 × 106,859.13
  4. Step 4: Simplify right side
    343,580.01x = 55,075,495,341.86
  5. Step 5: Solve for x
    x = 55,075,495,341.86/343,580.01
  6. Step 6: Final answer
    x = 160,298.89

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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.