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Finding the Fourth Proportional to 153,458.75, 211,783.73 and 93,031.94

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Solution

The fourth proportional to 153,458.75, 211,783.73 and 93,031.94 is: 128,390.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,458.75 : 211,783.73 = 93,031.94 : x
  2. Step 2: Convert to fraction form
    153,458.75/211,783.73 = 93,031.94/x
  3. Step 3: Cross multiply
    153,458.75x = 211,783.73 × 93,031.94
  4. Step 4: Simplify right side
    153,458.75x = 19,702,651,326.64
  5. Step 5: Solve for x
    x = 19,702,651,326.64/153,458.75
  6. Step 6: Final answer
    x = 128,390.53

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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.