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Finding the Fourth Proportional to 565,540.64, 848,303.55 and 139,080.15

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Solution

The fourth proportional to 565,540.64, 848,303.55 and 139,080.15 is: 208,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,540.64 : 848,303.55 = 139,080.15 : x
  2. Step 2: Convert to fraction form
    565,540.64/848,303.55 = 139,080.15/x
  3. Step 3: Cross multiply
    565,540.64x = 848,303.55 × 139,080.15
  4. Step 4: Simplify right side
    565,540.64x = 117,982,184,979.53
  5. Step 5: Solve for x
    x = 117,982,184,979.53/565,540.64
  6. Step 6: Final answer
    x = 208,618.40

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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.