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Finding the Fourth Proportional to 92,952, 128,291.04 and 53,208

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Solution

The fourth proportional to 92,952, 128,291.04 and 53,208 is: 73,436.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,952 : 128,291.04 = 53,208 : x
  2. Step 2: Convert to fraction form
    92,952/128,291.04 = 53,208/x
  3. Step 3: Cross multiply
    92,952x = 128,291.04 × 53,208
  4. Step 4: Simplify right side
    92,952x = 6,826,109,656.32
  5. Step 5: Solve for x
    x = 6,826,109,656.32/92,952
  6. Step 6: Final answer
    x = 73,436.93

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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.