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Finding the Fourth Proportional to 153,455.63, 211,779.42 and 93,028.82

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Solution

The fourth proportional to 153,455.63, 211,779.42 and 93,028.82 is: 128,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,455.63 : 211,779.42 = 93,028.82 : x
  2. Step 2: Convert to fraction form
    153,455.63/211,779.42 = 93,028.82/x
  3. Step 3: Cross multiply
    153,455.63x = 211,779.42 × 93,028.82
  4. Step 4: Simplify right side
    153,455.63x = 19,701,590,304.91
  5. Step 5: Solve for x
    x = 19,701,590,304.91/153,455.63
  6. Step 6: Final answer
    x = 128,386.23

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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.