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Finding the Fourth Proportional to 153,458.10, 211,782.80 and 93,031.29

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Solution

The fourth proportional to 153,458.10, 211,782.80 and 93,031.29 is: 128,389.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,458.10 : 211,782.80 = 93,031.29 : x
  2. Step 2: Convert to fraction form
    153,458.10/211,782.80 = 93,031.29/x
  3. Step 3: Cross multiply
    153,458.10x = 211,782.80 × 93,031.29
  4. Step 4: Simplify right side
    153,458.10x = 19,702,427,083.81
  5. Step 5: Solve for x
    x = 19,702,427,083.81/153,458.10
  6. Step 6: Final answer
    x = 128,389.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.