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Finding the Fourth Proportional to 153,456.01, 211,779.94 and 93,029.20

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Solution

The fourth proportional to 153,456.01, 211,779.94 and 93,029.20 is: 128,386.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,456.01 : 211,779.94 = 93,029.20 : x
  2. Step 2: Convert to fraction form
    153,456.01/211,779.94 = 93,029.20/x
  3. Step 3: Cross multiply
    153,456.01x = 211,779.94 × 93,029.20
  4. Step 4: Simplify right side
    153,456.01x = 19,701,718,394.25
  5. Step 5: Solve for x
    x = 19,701,718,394.25/153,456.01
  6. Step 6: Final answer
    x = 128,386.75

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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.