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Finding the Fourth Proportional to 254,368.10, 351,032.10 and 139,657.32

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Solution

The fourth proportional to 254,368.10, 351,032.10 and 139,657.32 is: 192,729.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,368.10 : 351,032.10 = 139,657.32 : x
  2. Step 2: Convert to fraction form
    254,368.10/351,032.10 = 139,657.32/x
  3. Step 3: Cross multiply
    254,368.10x = 351,032.10 × 139,657.32
  4. Step 4: Simplify right side
    254,368.10x = 49,024,202,319.97
  5. Step 5: Solve for x
    x = 49,024,202,319.97/254,368.10
  6. Step 6: Final answer
    x = 192,729.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.