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Finding the Fourth Proportional to 242,574,245.80, 363,861,368.70 and 70,056,687.40

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Solution

The fourth proportional to 242,574,245.80, 363,861,368.70 and 70,056,687.40 is: 105,085,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,574,245.80 : 363,861,368.70 = 70,056,687.40 : x
  2. Step 2: Convert to fraction form
    242,574,245.80/363,861,368.70 = 70,056,687.40/x
  3. Step 3: Cross multiply
    242,574,245.80x = 363,861,368.70 × 70,056,687.40
  4. Step 4: Simplify right side
    242,574,245.80x = 25,490,922,163,952,044
  5. Step 5: Solve for x
    x = 25,490,922,163,952,044/242,574,245.80
  6. Step 6: Final answer
    x = 105,085,031.10

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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.