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Finding the Fourth Proportional to 170,647.98, 235,109.62 and 118,916.32

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Solution

The fourth proportional to 170,647.98, 235,109.62 and 118,916.32 is: 163,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,647.98 : 235,109.62 = 118,916.32 : x
  2. Step 2: Convert to fraction form
    170,647.98/235,109.62 = 118,916.32/x
  3. Step 3: Cross multiply
    170,647.98x = 235,109.62 × 118,916.32
  4. Step 4: Simplify right side
    170,647.98x = 27,958,370,807.00
  5. Step 5: Solve for x
    x = 27,958,370,807.00/170,647.98
  6. Step 6: Final answer
    x = 163,836.52

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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.