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Finding the Fourth Proportional to 40,803,465.45, 57,200,434.35 and 40,803,465.45

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Solution

The fourth proportional to 40,803,465.45, 57,200,434.35 and 40,803,465.45 is: 57,200,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,803,465.45 : 57,200,434.35 = 40,803,465.45 : x
  2. Step 2: Convert to fraction form
    40,803,465.45/57,200,434.35 = 40,803,465.45/x
  3. Step 3: Cross multiply
    40,803,465.45x = 57,200,434.35 × 40,803,465.45
  4. Step 4: Simplify right side
    40,803,465.45x = 2,333,975,946,725,218.50
  5. Step 5: Solve for x
    x = 2,333,975,946,725,218.50/40,803,465.45
  6. Step 6: Final answer
    x = 57,200,434.35

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.