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Finding the Fourth Proportional to 229,307.51, 316,433.74 and 127,339.44

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Solution

The fourth proportional to 229,307.51, 316,433.74 and 127,339.44 is: 175,722.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,307.51 : 316,433.74 = 127,339.44 : x
  2. Step 2: Convert to fraction form
    229,307.51/316,433.74 = 127,339.44/x
  3. Step 3: Cross multiply
    229,307.51x = 316,433.74 × 127,339.44
  4. Step 4: Simplify right side
    229,307.51x = 40,294,495,762.43
  5. Step 5: Solve for x
    x = 40,294,495,762.43/229,307.51
  6. Step 6: Final answer
    x = 175,722.53

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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.