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Finding the Fourth Proportional to 224,643.42, 310,132.44 and 153,128.52

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Solution

The fourth proportional to 224,643.42, 310,132.44 and 153,128.52 is: 211,402.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,643.42 : 310,132.44 = 153,128.52 : x
  2. Step 2: Convert to fraction form
    224,643.42/310,132.44 = 153,128.52/x
  3. Step 3: Cross multiply
    224,643.42x = 310,132.44 × 153,128.52
  4. Step 4: Simplify right side
    224,643.42x = 47,490,121,541.19
  5. Step 5: Solve for x
    x = 47,490,121,541.19/224,643.42
  6. Step 6: Final answer
    x = 211,402.24

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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.