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Finding the Fourth Proportional to 66,434,140.40, 99,651,210.60 and 66,434,140.40

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Solution

The fourth proportional to 66,434,140.40, 99,651,210.60 and 66,434,140.40 is: 99,651,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,434,140.40 : 99,651,210.60 = 66,434,140.40 : x
  2. Step 2: Convert to fraction form
    66,434,140.40/99,651,210.60 = 66,434,140.40/x
  3. Step 3: Cross multiply
    66,434,140.40x = 99,651,210.60 × 66,434,140.40
  4. Step 4: Simplify right side
    66,434,140.40x = 6,620,242,516,030,368
  5. Step 5: Solve for x
    x = 6,620,242,516,030,368/66,434,140.40
  6. Step 6: Final answer
    x = 99,651,210.60

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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.