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Finding the Fourth Proportional to 94,725, 130,705.62 and 54,430.98

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Solution

The fourth proportional to 94,725, 130,705.62 and 54,430.98 is: 75,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,725 : 130,705.62 = 54,430.98 : x
  2. Step 2: Convert to fraction form
    94,725/130,705.62 = 54,430.98/x
  3. Step 3: Cross multiply
    94,725x = 130,705.62 × 54,430.98
  4. Step 4: Simplify right side
    94,725x = 7,114,434,988.11
  5. Step 5: Solve for x
    x = 7,114,434,988.11/94,725
  6. Step 6: Final answer
    x = 75,106.20

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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.