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Finding the Fourth Proportional to 153,293.63, 229,953.40 and 42,485.63

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Solution

The fourth proportional to 153,293.63, 229,953.40 and 42,485.63 is: 63,732.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,293.63 : 229,953.40 = 42,485.63 : x
  2. Step 2: Convert to fraction form
    153,293.63/229,953.40 = 42,485.63/x
  3. Step 3: Cross multiply
    153,293.63x = 229,953.40 × 42,485.63
  4. Step 4: Simplify right side
    153,293.63x = 9,769,713,813.66
  5. Step 5: Solve for x
    x = 9,769,713,813.66/153,293.63
  6. Step 6: Final answer
    x = 63,732.03

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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.