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Finding the Fourth Proportional to 99,748,101.60, 139,307,220 and 99,748,101.60

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Solution

The fourth proportional to 99,748,101.60, 139,307,220 and 99,748,101.60 is: 139,307,220

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,748,101.60 : 139,307,220 = 99,748,101.60 : x
  2. Step 2: Convert to fraction form
    99,748,101.60/139,307,220 = 99,748,101.60/x
  3. Step 3: Cross multiply
    99,748,101.60x = 139,307,220 × 99,748,101.60
  4. Step 4: Simplify right side
    99,748,101.60x = 13,895,630,734,173,552
  5. Step 5: Solve for x
    x = 13,895,630,734,173,552/99,748,101.60
  6. Step 6: Final answer
    x = 139,307,220

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1.5x scale

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.