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Finding the Fourth Proportional to 169,638,565.60, 254,457,848.40 and 157,167,416.80

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Solution

The fourth proportional to 169,638,565.60, 254,457,848.40 and 157,167,416.80 is: 235,751,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,638,565.60 : 254,457,848.40 = 157,167,416.80 : x
  2. Step 2: Convert to fraction form
    169,638,565.60/254,457,848.40 = 157,167,416.80/x
  3. Step 3: Cross multiply
    169,638,565.60x = 254,457,848.40 × 157,167,416.80
  4. Step 4: Simplify right side
    169,638,565.60x = 39,992,482,717,514,016
  5. Step 5: Solve for x
    x = 39,992,482,717,514,016/169,638,565.60
  6. Step 6: Final answer
    x = 235,751,125.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.